# The Marimo vs メダカ育成げーむ

The Marimo and メダカ育成げーむ both sit at 4.4 stars, but that hides the real split: 79% of The Marimo's written reviews are positive against 52% of メダカ育成げーむ's. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for The Marimo against 4.5 for メダカ育成げーむ. Both are backed by a comparable volume of ratings — 16 and 17 respectively. Written reviews are what separate them: 79% of The Marimo's written reviews are positive against 52% of メダカ育成げーむ's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | The Marimo | メダカ育成げーむ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (16 ratings)](https://appshunter.io/ios/app/the-marimo/id398361669/reviews) | **[4.5 (17 ratings)](https://appshunter.io/ios/app/id1100508229/reviews)** |
| Number of ratings | 16 | **17** |
| Positive reviews | **78.9% of reviews** | 52.4% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 18 MB | 76 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Kosuke Ogawa](https://appshunter.io/developer/379825481) | [Canvas soft](https://appshunter.io/developer/670507890) |

## What reviewers say

### The Marimo

[App page](https://appshunter.io/ios/app/the-marimo/id398361669)

Care for a virtual green ball creature that grows over time. Keep its environment clean and provide light to ensure its survival. Customize its appearance and interact with it through various gestures.

**Highlights:** Virtual pet care, Growth simulation, Environment maintenance, Customization options, Interactive controls, Social sharing

**Features:** Vision Pro support

**In-app purchases:** none


### メダカ育成げーむ

[App page](https://appshunter.io/ios/app/id1100508229)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is The Marimo free?

The Marimo is free to download, with no in-app purchases.

### Is メダカ育成げーむ free?

メダカ育成げーむ is free to download, with no in-app purchases.

### Which has better reviews, The Marimo or メダカ育成げーむ?

メダカ育成げーむ is rated higher. The Marimo averages 4.4 out of 5 from 16 ratings, while メダカ育成げーむ averages 4.5 from 17 ratings.

### Do The Marimo or メダカ育成げーむ have ads?

Both The Marimo and メダカ育成げーむ show ads.

### Which is updated more often, The Marimo or メダカ育成げーむ?

The Marimo ships an update every 3 months, and メダカ育成げーむ every 3 months. Most recently, The Marimo was updated on November 6, 2026 and メダカ育成げーむ on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*